US2094900A - Dispensing device for collapsible tubes - Google Patents

Description

Oct. 5, 1937.

C.S.MANN

DISPENSING DEVICE FOR COLLAPSIBLE TUBES Filed Jan. 8, 1936 I 6 W 3 9 4 3 O 2 3 3 Q ,5 i7 5 a 2 6 h 2 6 9 f 3 a 3 8 $9 7. M l 8 FL 5!: 0 o a? 6 4 1: 5 4 W 0 B m M a M 2 a /NVEl V7'OR CHARLESSTEWARTMANN" PER NEY

Patented Oct. 5, 1937 PATENT ole-Flee FOR mmrsmm UBES V Charles 'Stewart Mann, Vancouven British- Columbia, Canada Application January 8,

1936,-SerialNo. 58,149

6 Claims. (01. 221-60 My invention relates to improvements in dispensing devices for collapsible tubes; Theobjects of the invention are to provide means capable of being secured to a collapsible tube con-' taining face cream, tooth paste, shaving cream or the like, through which the content of the tube may be expressed as desired; to provide means whereby inadvertent expression of the content can be prevented. Further objects are to provide a dispensing head which can be manufactured very cheaply on a quantity production basis and which may be readily removed from one tube and secured to another when desired.

Further objects are to provide a device which will dispense with or replace the screw cap now used on collapsible tubes, which will be more sanitary due to the prevention of leakage and one which will prevent corrosion of the metal incidental to leakage of the contents adjacent the point of discharge. 1 7

The invention consists essentially of a head having a manually operable valve adjacent the nipple of the tube to which the head is secured and a spring tensioned valve adapted to be opened to express the contents of the tube in response to pressure exerted upon said tube, as' will be more fully described in the following specification and shown in the accompanying drawing, in which:

Fig. 1 is an enlarged sectional view of the invention fitted to the nipple of a collapsible tube.

Fig. 2 is a fractional elevation showing the turn button and lock of the control valve.

Fig. 3, is a side elevation of the locking button.

Fig. 4 is an elevational view of the adapter; 1

In the drawing like characters of reference indicate corresponding parts in each figure.

The numeral l indicates a collapsible tube of the usual type having shoulders 2 and a screw nipple 3 through which the contents of the tube are normally expressed by applying pressure to the body of the tube.

Screwed to the nipple 3 is an ejector head 4 consisting of a base 5 and a cap 6. The base is provided with a flange 1 adapted to fit onto the shoulder 2 of the tube I and the flange is provided with an annular recess 8 to bridge the lettering normally embossed upon said shoulder. The base is provided with a vertical bore 9 and is internally threaded at its lower end as at In to fit the largest type of tube nipple. Normally provided for the internal thread I0 is an adapter H of a size to fit a desired tube nipple which is internally and externally threaded and is provided with a plurality of peripheral apertures I2,

see detail in Figurea, which are disposed inline with the thread so as 'to-progressively come-into direct register with'a pointed set screw'l3 which 1.

threadedly engages the-neck M .of the base and r a is to receive a valve plug IT. The valve plugis provided with a port Ill-which isadapted onthe plug. being turned to register with theboreys and" a passage I9 is extended longitudinally through the inner; end of theplug to a groove an annular space 20A and a plurality of channels 20B, shown in dotted line in=-Figure l, ex-

tending-acrossthe plug for the purpose of break. ingthe suction in the event of the removal of the plug.- The outer end of the plug ll isre w duced .to-formr-a stem 2| to which is fitted a turn button 22 by any suitable fastening means.

Thestem-Zl is housed in a recess 23 which is internallythreadedand is provided-at its base;

with an annular groove 24 .for receiving a packing ring 25. a V V A gland collar -26 having an annular rim 2! is screwed into the recess 23, so that its rim' bears dowrrupon-the packing ring;25.- The gland collar 26 isadapted to: receive a suitablepackingr.

28 which-is adjustably compressed against the. stem: 2| by awfollower 29 screwed into the recess'23;

The turnbutton 22 is provided withan arcuate slot 30 which embraces a pin. 3lxfitted into the base 5, the ends of the slot'forming stops to limit the turning movement of the button when the valve plug has reached its fully open or fully closed position. A recess 32 is formed in the base in which a locking button 33 is slidably movable. The locking button is held against rotation by a stud 34, see Figure 3, which it engages and which is screwed into the base at the side of the recess 32. The button is recessed on one side of its outer face as at 35 and is provided with an upstanding dog 36, which dog is adapted to engage a notch 31 formed on the inner face of the turn button 22, so as to'lock the valve plug against being moved to open position.

The locking button 33 is outwardly urged by a spring 38 which is held in line by a slidably mounted pin-39 carriedfat its free end by the locking button and. abutting the base of the recess 32.

7 .42 is formed, which is closed by a conical valve 43 having a stem 44 slidably extending through a boss 45 carried by a spider 46. The valve stem is provided with a tension spring 41 and a nut 48 by which the valve may be adjusted The head is affixed-t0 a. collapsible-tube as shown and is normally left with the plug valve closed. Whena supply ofjthe contents is required, pressure is exerted upon the lockingbutton 33 to depress it and remove-thedog 36 from the notch 31 of the turn button 22, this turn'button is'then rotated in a. clockwise direction, as

viewed in FigureZ, until the end of the slot 30 is brought to rest against the pin 31 thus establishing communication between the-tube land the cap 6. As the tube is squeezed the contents flow through'the valve plug and ultimately urge the conical valve 43 011 its seat and extrude therearound' in a tubular "ribbon. "The contents emerging from the cap, though tubular at the point of discharge, collapse to a flat ribbon at a very short distance from the valve 43, which tends to economical delivery for tooth paste and similar commodity contents. As soon as pressure is relieved from the tube the valve'43 closes, thus cutting off the discharge and leaving'the device clean and sanitary. By again turning the valve plug I! further extrusion of paste is definitely prevented.

It will thus be seen that where it is now necessary to use both hands, usually wet from soap suds and remove the cap of the collapsible tube all this will be obviated with a tube having a dispensing device such'as is above" described, for

with such a device the tube can be held with one hand, the locking button depressed and the turn button rotated at the same time, so that on pressure being applied a desired amount of the contents can be accurately discharged leaving the device clean and sanitary after use.

It will of course be obvious that the device may be made integral with the collapsible tube as well as an attachment therefor. j

What I claim as my invention is:

1. A dispensing device for collapsible tubes comprising a. hollow body adapted for connection to the discharge endof acollapsible tube, a manually controlled valve adjacent the tube discharge and a spring tensioned valve disposed beyond the manually controlled valve adapted to open in response to pressure upon the tube to discharge the contents of said tube after said contents have passed through the manually controlled valve.

. 2. In a dispensing device for collapsible tubes,

a manually operable valve having a rotatable stem and a turn button, said turn button being mounted flush with the dispensing device and having a notch in its underside, a manually operable spring pressed lock button slidably mounted in the dispensing device, said lock button being disposed in contact with the turn button and having a dog normally engaging the notch therein to hold said turn button against rotation, said lock button being adapted to be inwardly pressed 1 to disengage the dog from therecess of the turn button and to permit the rotation of said turn button.- V V V 3. In a dispensing device for collapsible tubes, a valve body having a central bore and a recessed chamber adjacent its outer end, a valve plug having a spindle rotatable within the bore, a gland collar having an annular rim adapted to regise ter with a complementary groove at the base of the recess, means for securing said collar within the bore, a' follower adapted tobear against a packing within the gland collar, and means for securing the follower in adjusted position.

4. A dispensing device for collapsible tubes comprising a body adapted for connection to the nipple of a collapsible tube, said body having a ported passage extending therethrough to discharge, a manually operable valve controlling the flow of material through said ported passage,

manually operable means for locking the valve against operation and a spring pressed valve at the discharge end of the ported passage adapted to open in response to pressure upon the tube.

5. The combination with a threaded nipple and an internally threaded connector of greater diameter than the nipple, of an adapter consist ingof an annular member internally and externally threaded, said connector having a set screw, said annular member having a plurality of peripheral apertures, said set screw being adapted to extend through any of said apertures and engage the nipple to prevent'rotation of the connector and the annular member about the nipple.

6.'The combination ,with a threaded nipple and an internally threaded connector of greater of peripheral apertures disposed inline with the thread of said connector, said set screw being adapted to extend through any of said apertures and engage the nipple to prevent rotation of the connector and the annular member about the nipple.

CHARLES STEWART MANN.

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